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Bryant Deluxe 4 WAy Gas Furnase 355MAV User Manual

Page 38

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Fig. 40—Concentric Vent and Combustion-Air RoofTermination (Preferred)

A93054

COMBUSTION

AIR

MAINTAIN 12 IN. (305 mm).

(18 IN. (457 mm) FOR CANADA)

MINIMUM CLEARANCE

ABOVE HIGHEST

ANTICIPATED SNOW

LEVEL. MAXIMUM OF

24 IN. (610 mm) ABOVE ROOF.

VENT

Fig. 41—Concentric Vent and Combustion-Air SideTermination

A93055

MAINTAIN 12 IN. (305 mm)

CLEARANCE

ABOVE HIGHEST

ANTICIPATED SNOW

LEVEL OR GRADE,

WHICHEVER IS

GREATER.

COMBUSTION-AIR

VENT

1″ MAXIMUM

12″ (305 mm) MINIMUM

OVERHANG OR ROOF

Fig. 42—Sidewall Termination of 12 in. or More

A87225

MAINTAIN 12 IN.

CLEARANCE

ABOVE HIGHEST

ANTICIPATED SNOW

LEVEL OR GRADE,

WHICHEVER IS

GREATER.

90¡

VENT

12 IN. SEPARATION

BETWEEN BOTTOM OF

COMBUSTION AIR AND

BOTTOM OF VENT

BRACKET

COMBUSTION-AIR

12″ MINIMUM

OVERHANG OR ROOF

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